/* ============================================================
   开云竞猜 · 共享样式表  /assets/site.css
   深夜赛场指挥中心：深空基底 / 电光青编号 / 极细边界 / 脉冲收束
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

img, svg, video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--kx-cyan);
  outline-offset: 2px;
}

/* ---------- 2. 变量 ---------- */
:root {
  /* 色彩层 */
  --kx-void:       #050B18;
  --kx-deep:       #0A1428;
  --kx-panel:      #122040;
  --kx-line:       #1E3A6E;
  --kx-line-soft:  rgba(30, 58, 110, 0.55);
  --kx-cyan:       #2FF3E0;
  --kx-orange:     #FF7A1A;
  --kx-lime:       #A6FF4D;
  --kx-violet:     #6C63FF;
  --kx-ink:        #F2F6FF;
  --kx-mute:       #93A7C9;

  /* 字体层 */
  --kx-font-display: "HarmonyOS Sans SC", "Noto Sans SC", "PingFang SC",
                     "Microsoft YaHei", Inter, system-ui, sans-serif;
  --kx-font-body:    "HarmonyOS Sans SC", "Noto Sans SC", "PingFang SC",
                     "Hiragino Sans GB", "Microsoft YaHei", Inter, -apple-system,
                     system-ui, sans-serif;
  --kx-font-mono:    "Roboto Mono", "JetBrains Mono", "SFMono-Regular",
                     Menlo, Consolas, "Courier New", monospace;

  /* 结构层 */
  --kx-shell: 1280px;
  --kx-gutter: 24px;
  --kx-radius: 2px;
  --kx-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --kx-shadow: 0 18px 40px -32px rgba(0, 0, 0, 0.95);
}

/* ---------- 3. 中文排版与页面基底 ---------- */
body {
  min-height: 100%;
  background-color: var(--kx-void);
  background-image:
    radial-gradient(920px 540px at 80% -10%, rgba(47, 243, 224, 0.07), transparent 62%),
    radial-gradient(780px 480px at 6% 2%, rgba(108, 99, 255, 0.08), transparent 60%);
  background-repeat: no-repeat;
  color: var(--kx-ink);
  font-family: var(--kx-font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--kx-font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.16;
}

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

/* ---------- 4. 布局骨架 ---------- */
.kx-shell {
  width: 100%;
  max-width: var(--kx-shell);
  margin-inline: auto;
  padding-inline: var(--kx-gutter);
}

.kx-section {
  position: relative;
  padding-block: clamp(56px, 7vw, 104px);
  border-top: 1px solid var(--kx-line-soft);
}

.kx-section::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 96px;
  height: 2px;
  background: var(--kx-cyan);
}

.kx-sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 16px 28px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.kx-sec-num {
  font-family: var(--kx-font-mono);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--kx-cyan);
  padding: 8px 14px;
  border: 1px solid var(--kx-line);
  background: rgba(10, 20, 40, 0.72);
}

.kx-sec-title {
  font-size: clamp(26px, 3.4vw, 42px);
  flex: 1 1 320px;
}

.kx-sec-desc {
  flex: 1 1 100%;
  max-width: 62ch;
  color: var(--kx-mute);
  font-size: 15.5px;
  line-height: 1.8;
}

.kx-eyebrow {
  display: inline-block;
  font-family: var(--kx-font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--kx-cyan);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.kx-grid {
  display: grid;
  gap: 20px;
}

.kx-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kx-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.kx-grid--split {
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: 40px;
}

.kx-panel {
  border: 1px solid var(--kx-line);
  background: linear-gradient(180deg, var(--kx-panel), rgba(10, 20, 40, 0.92));
  padding: 24px;
  box-shadow: var(--kx-shadow);
}

/* ---------- 5. 正文与链接 ---------- */
.kx-prose {
  max-width: 74ch;
  color: var(--kx-mute);
  font-size: 16.5px;
  line-height: 1.8;
}

.kx-prose p + p { margin-top: 1.05em; }
.kx-prose strong { color: var(--kx-ink); font-weight: 700; }

.kx-prose a {
  color: var(--kx-cyan);
  border-bottom: 1px solid var(--kx-line);
  transition: border-color 0.16s var(--kx-ease);
}

.kx-prose a:hover { border-bottom-color: var(--kx-cyan); }

.kx-breadcrumb {
  font-family: var(--kx-font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--kx-mute);
  margin-bottom: 22px;
}

.kx-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.kx-breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--kx-line);
}

.kx-breadcrumb a { color: var(--kx-mute); transition: color 0.16s var(--kx-ease); }
.kx-breadcrumb a:hover { color: var(--kx-cyan); }

/* ---------- 6. 按钮 ---------- */
.kx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--kx-line);
  border-radius: var(--kx-radius);
  background: transparent;
  color: var(--kx-ink);
  font-family: var(--kx-font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.4;
  cursor: pointer;
  transition: transform 0.16s var(--kx-ease),
              border-color 0.16s var(--kx-ease),
              background-color 0.16s var(--kx-ease),
              color 0.16s var(--kx-ease);
}

.kx-btn:hover { transform: translateY(-1px); }

.kx-btn--solid {
  background: var(--kx-cyan);
  border-color: var(--kx-cyan);
  color: #04141a;
}
.kx-btn--solid:hover { background: #5bf8ea; border-color: #5bf8ea; }

.kx-btn--accent {
  background: var(--kx-orange);
  border-color: var(--kx-orange);
  color: #180900;
}
.kx-btn--accent:hover { background: #ff9245; border-color: #ff9245; }

.kx-btn--ghost { color: var(--kx-mute); }
.kx-btn--ghost:hover {
  color: var(--kx-cyan);
  border-color: var(--kx-cyan);
  background: rgba(47, 243, 224, 0.06);
}

.kx-btn--sm { padding: 7px 13px; font-size: 13px; }

/* ---------- 7. 卡片 / 数据 / 筛选片 ---------- */
.kx-card {
  position: relative;
  padding: 24px;
  border: 1px solid var(--kx-line);
  border-radius: var(--kx-radius);
  background: var(--kx-deep);
  transition: transform 0.16s var(--kx-ease),
              border-color 0.16s var(--kx-ease),
              background-color 0.16s var(--kx-ease);
}

.kx-card:hover {
  transform: translateY(-1px);
  border-color: var(--kx-cyan);
  background: var(--kx-panel);
}

.kx-card__meta {
  display: block;
  font-family: var(--kx-font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--kx-cyan);
  margin-bottom: 10px;
}

.kx-card__title {
  font-size: 18px;
  margin-bottom: 8px;
}

.kx-card__body {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--kx-mute);
}

.kx-stat {
  position: relative;
  padding: 22px;
  border: 1px solid var(--kx-line);
  border-radius: var(--kx-radius);
  background: linear-gradient(180deg, var(--kx-panel), rgba(10, 20, 40, 0.9));
  box-shadow: var(--kx-shadow);
}

.kx-stat__num {
  font-family: var(--kx-font-mono);
  font-size: clamp(30px, 4.4vw, 52px);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--kx-ink);
}

.kx-stat--accent .kx-stat__num { color: var(--kx-cyan); }

.kx-stat__unit {
  font-family: var(--kx-font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--kx-cyan);
  margin-left: 6px;
}

.kx-stat__label {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--kx-mute);
}

.kx-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.kx-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--kx-line);
  border-radius: var(--kx-radius);
  background: rgba(10, 20, 40, 0.6);
  color: var(--kx-mute);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: color 0.16s var(--kx-ease),
              border-color 0.16s var(--kx-ease),
              background-color 0.16s var(--kx-ease);
}

.kx-chip:hover {
  color: var(--kx-ink);
  border-color: var(--kx-cyan);
}

.kx-chip[aria-pressed="true"],
.kx-chip[data-active] {
  background: var(--kx-cyan);
  border-color: var(--kx-cyan);
  color: #04141a;
}

/* ---------- 8. 图片容器 ---------- */
.kx-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--kx-line);
  border-radius: var(--kx-radius);
  background:
    linear-gradient(135deg, var(--kx-panel) 0%, var(--kx-void) 100%);
  aspect-ratio: 16 / 9;
}

.kx-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.24s var(--kx-ease);
}

.kx-figure:hover img { transform: scale(1.02); }

.kx-figure--wide   { aspect-ratio: 21 / 9; }
.kx-figure--tall   { aspect-ratio: 3 / 4; }
.kx-figure--square { aspect-ratio: 1 / 1; }

.kx-figure__cap {
  padding: 10px 12px;
  border-top: 1px solid var(--kx-line-soft);
  background: var(--kx-deep);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--kx-mute);
}

/* ---------- 9. 跳转链接 ---------- */
.kx-skip {
  position: absolute;
  left: 12px;
  top: -64px;
  z-index: 120;
  padding: 10px 16px;
  background: var(--kx-cyan);
  color: #04141a;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--kx-radius);
  transition: top 0.16s var(--kx-ease);
}

.kx-skip:focus,
.kx-skip:focus-visible { top: 12px; }

/* ---------- 10. 头部 ---------- */
.kx-header {
  position: relative;
  z-index: 60;
  background: var(--kx-void);
}

.kx-header__top {
  background: var(--kx-deep);
  border-bottom: 1px solid var(--kx-line-soft);
}

.kx-topbar {
  max-width: var(--kx-shell);
  margin-inline: auto;
  padding: 12px var(--kx-gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
}

.kx-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.kx-brand__mark {
  position: relative;
  flex: none;
  width: 30px;
  height: 30px;
  border: 1px solid var(--kx-cyan);
  border-radius: var(--kx-radius);
  background: linear-gradient(135deg, rgba(47, 243, 224, 0.22), rgba(108, 99, 255, 0.2));
}

.kx-brand__mark::before {
  content: "";
  position: absolute;
  inset: 6px;
  background: var(--kx-cyan);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.kx-brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.kx-brand__name {
  font-family: var(--kx-font-display);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--kx-ink);
}

.kx-brand__tag {
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--kx-mute);
}

.kx-topbar__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
}

.kx-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 1px solid var(--kx-line);
  border-radius: var(--kx-radius);
  background: rgba(5, 11, 24, 0.65);
  font-family: var(--kx-font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--kx-lime);
}

.kx-status__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--kx-lime);
  box-shadow: 0 0 0 3px rgba(166, 255, 77, 0.16);
}

.kx-topbar__link {
  font-size: 13px;
  color: var(--kx-mute);
  padding-bottom: 1px;
  border-bottom: 1px solid transparent;
  transition: color 0.16s var(--kx-ease), border-color 0.16s var(--kx-ease);
}

.kx-topbar__link:hover,
.kx-topbar__link:focus-visible {
  color: var(--kx-cyan);
  border-bottom-color: var(--kx-cyan);
}

/* 下层导航跑道 */
.kx-nav-shell {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 11, 24, 0.94);
  border-bottom: 1px solid var(--kx-line);
  backdrop-filter: blur(12px);
}

.kx-nav-shell__inner {
  position: relative;
  max-width: var(--kx-shell);
  margin-inline: auto;
  padding-inline: var(--kx-gutter);
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 12px;
}

.kx-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.kx-nav__list {
  display: flex;
  flex-wrap: nowrap;
  gap: 2px;
}

.kx-nav__item { flex: 0 0 auto; }

.kx-nav__link {
  display: block;
  padding: 16px 15px;
  border-bottom: 2px solid transparent;
  color: var(--kx-mute);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: color 0.16s var(--kx-ease),
              background-color 0.16s var(--kx-ease),
              border-color 0.16s var(--kx-ease),
              transform 0.16s var(--kx-ease);
}

.kx-nav__link:hover {
  color: var(--kx-ink);
  background: var(--kx-deep);
  border-bottom-color: var(--kx-line);
  transform: translateY(-1px);
}

.kx-nav__link[aria-current="page"] {
  color: var(--kx-ink);
  border-bottom-color: var(--kx-cyan);
  background: linear-gradient(180deg, rgba(47, 243, 224, 0.13), rgba(47, 243, 224, 0));
}

.kx-nav-aside {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding-block: 8px;
}

/* 移动端栏目按钮 */
.kx-nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--kx-ink);
}

.kx-nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 20px;
}

.kx-nav-toggle__bars i {
  display: block;
  height: 2px;
  background: var(--kx-cyan);
  transition: transform 0.16s var(--kx-ease), opacity 0.16s var(--kx-ease);
}

.kx-nav-toggle[aria-expanded="true"] .kx-nav-toggle__bars i:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.kx-nav-toggle[aria-expanded="true"] .kx-nav-toggle__bars i:nth-child(2) {
  opacity: 0;
}
.kx-nav-toggle[aria-expanded="true"] .kx-nav-toggle__bars i:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* 阅读进度脉冲 */
.kx-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  z-index: 2;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--kx-cyan), var(--kx-violet));
  transition: width 0.1s linear;
}

/* ---------- 11. 页脚 ---------- */
.kx-footer {
  margin-top: clamp(48px, 7vw, 96px);
  background: var(--kx-deep);
  border-top: 1px solid var(--kx-line);
}

.kx-pulse-band {
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--kx-cyan) 0 24px,
    transparent 24px 34px,
    var(--kx-orange) 34px 44px,
    transparent 44px 78px,
    var(--kx-lime) 78px 84px,
    transparent 84px 132px
  );
  opacity: 0.72;
}

.kx-footer__inner {
  max-width: var(--kx-shell);
  margin-inline: auto;
  padding: clamp(40px, 5vw, 60px) var(--kx-gutter) 36px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr);
  gap: 40px;
}

.kx-footer__brand { min-width: 0; }

.kx-footer__lead {
  margin-top: 18px;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--kx-mute);
}

.kx-contact {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.kx-contact li {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--kx-mute);
}

.kx-contact__k {
  font-family: var(--kx-font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--kx-cyan);
}

.kx-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.kx-footer__head {
  margin-bottom: 14px;
  font-family: var(--kx-font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--kx-cyan);
}

.kx-footer__list { display: grid; gap: 2px; }

.kx-footer__link {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--kx-mute);
  transition: color 0.16s var(--kx-ease), transform 0.16s var(--kx-ease);
}

.kx-footer__link:hover,
.kx-footer__link:focus-visible {
  color: var(--kx-ink);
  transform: translateX(3px);
}

.kx-footer__legal {
  background: var(--kx-void);
  border-top: 1px solid var(--kx-line-soft);
}

.kx-footer__legal-inner {
  max-width: var(--kx-shell);
  margin-inline: auto;
  padding: 20px var(--kx-gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 28px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--kx-mute);
}

.kx-footer__legal-inner p { margin: 0; }

.kx-footer__record {
  font-family: var(--kx-font-mono);
  letter-spacing: 0.04em;
}

/* ---------- 12. 滚动显现协议 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.12s var(--kx-ease), transform 0.12s var(--kx-ease);
}

[data-reveal="in"] {
  opacity: 1;
  transform: none;
}

/* ---------- 13. 响应式 ---------- */
@media (max-width: 1080px) {
  .kx-nav__link { padding: 16px 11px; font-size: 13.5px; }
  .kx-grid--split { grid-template-columns: minmax(0, 1fr); gap: 32px; }
}

@media (max-width: 900px) {
  .kx-nav-shell__inner {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0 12px;
  }

  .kx-nav-toggle {
    display: inline-flex;
    order: 1;
  }

  .kx-nav-aside {
    order: 2;
    margin-left: auto;
    padding-block: 6px;
  }

  .kx-nav {
    order: 3;
    display: none;
    width: 100%;
    margin-inline: calc(var(--kx-gutter) * -1);
    padding: 6px var(--kx-gutter) 14px;
    border-top: 1px solid var(--kx-line-soft);
    background: var(--kx-deep);
  }

  .kx-nav[data-open] { display: block; }

  .kx-nav__list {
    flex-direction: column;
    gap: 0;
  }

  .kx-nav__link {
    padding: 13px 4px;
    font-size: 15px;
    border-bottom: 1px solid var(--kx-line-soft);
  }

  .kx-nav__link:hover { transform: none; }

  .kx-nav__link[aria-current="page"] {
    background: transparent;
    box-shadow: inset 3px 0 0 var(--kx-cyan);
    padding-left: 12px;
  }

  .kx-footer__inner { grid-template-columns: minmax(0, 1fr); gap: 34px; }
}

@media (max-width: 760px) {
  .kx-grid--2,
  .kx-grid--3 { grid-template-columns: minmax(0, 1fr); }

  .kx-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }

  .kx-figure--wide { aspect-ratio: 16 / 9; }
}

@media (max-width: 640px) {
  .kx-brand__tag { display: none; }
  .kx-topbar { padding-block: 10px; }
  .kx-sec-head { gap: 12px 18px; }
  .kx-panel { padding: 18px; }
  .kx-card { padding: 18px; }
}

@media (max-width: 480px) {
  .kx-footer__cols { grid-template-columns: minmax(0, 1fr); }
  .kx-contact li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .kx-footer__legal-inner { justify-content: flex-start; }
}

/* ---------- 14. 减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .kx-btn:hover,
  .kx-card:hover,
  .kx-footer__link:hover,
  .kx-nav__link:hover,
  .kx-figure:hover img {
    transform: none;
  }
}